Teacher:You are given a sentence and a question in the input. The information provided in the sentence should be enough to answer the question. You're expected to write the correct answer. Do not use any facts other than those provided in the sentence.
Teacher: Now, understand the problem? Solve this instance: Sentence: The economic output of the metropolitan area alone is worth more than one third of national GDP around $6.5billion in terms of nominal GDP NR.s 550 billion approximately per year $2200 per capital income approx three times national average. 
Question: Approximately what portion of Nepal's GDP is produced by the Kathmandu metropolitan area?
Student:
more than one third, around $6.5 billion in terms of nominal GDP.